JAVASCRIPT 专业四级：这几个问题，你会做几个？

[cauil]

1. "1" - - "1";
2. new Array(5).toString();
3.
var x = 0;
function foo() {
x++;
this.x = x;
return foo;
}
var bar = new new foo;
console.log(bar.x);
4.
var bar = 1,
foo = {};

foo: {
bar: 2;
baz: ++bar;
};
foo.baz + foo.bar + bar;
5.
function foo(a, b) {
arguments[1] = 2;
console.log(b);
}
foo(1);
6. (true + false) > 2 + true;

[zhujinliang]

chrome console加google终于弄明白了。。。感谢楼主分享

[hahasong]

反对任何滥用语言的灵活性，生产环境写这种东西真的是作死

[101]

第六题还能这么玩......

[mhycy]

这种应试题有什么意义么？

[shreksu]

然并卵

[latelx]

格式太差。。。。

[datou552211]

会写二叉树嘛

[snailsir]

有没有专业六级的

[newghost]

@snailsir

专业八级

http://ourjs.com/detail/52fb82e13bd19c4814000001

[snailsir]

@newghost 跪了

[bramblex]

楼主把下面这段JavaScript代码解释一遍再说吧：

[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]((![]+[])[+!+[]]+(![]+[])[!+[]+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]+(!![]+[])[+[]]+(![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]]+[+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]])()

[Threezj]

反转二叉树。。

[nekoyaki]

想起了之前姬友拿来问我的一道题，好象是给了个i的初始值，问i+++i+++i返回值多少，i是多少……
然后标准答案里大谈特谈分析了一通给了一个答案，然后我淡定地扔到gcc和VC6.0和VS里一编译，给的结果都不一样……

[ahnujyyang]

@hahasong 同意, 纯粹嘬死

[irainy]

把有限的生命投入到无限的brain f**k中~

[shyscool]

TUT

[mingyun]

工作中不会这样写吧